On Wed, Aug 22, 2001 at 06:47:26PM +1200, Oleg Polianski wrote:
> I see. It's a different story and I have experienced exactly the same
> behaviour in the situation like yours. Because you can't set upper memory
> limits for buffer cache size, you could try to dig in tech-kern archives and
> to look for the patches from Lars Heidieker for more balanced UVM/UBC
> behaviour. They probably will not apply without problems to -current but who
> knows.
Is it really true that this parameter can not be changed with sysctl or
a kernel rebuild?
Simply creating a cd image flushes all processes out of RAM and makes a nice
machine dead slow. It makes no sense to try caching all the cd image data
in RAM, anyway, because it is only accessed once and then deleted ;)
I found my system performing better _before_ the buffer cache was improved
to take over all system RAM.
Please? What's the magic option to be tuned?
-jm